Finding the Fourth Proportional to 439,859,548,196.68, 659,433,271,788.18 and 137,516,522,912.28

Step by Step Solution

1. Step 1: Write the proportion equation
   439,859,548,196.68 : 659,433,271,788.18 = 137,516,522,912.28 : x
2. Step 2: Convert to fraction form
   439,859,548,196.68/659,433,271,788.18 = 137,516,522,912.28/x
3. Step 3: Cross multiply
   439,859,548,196.68x = 659,433,271,788.18 × 137,516,522,912.28
4. Step 4: Simplify right side
   439,859,548,196.68x = 90,682,970,628,979,022,626,816
5. Step 5: Solve for x
   x = 90,682,970,628,979,022,626,816/439,859,548,196.68
6. Step 6: Final answer
   x = 206,163,469,681.99